JP3055423U - Crop transport belt - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To prevent the flat belt portion from bending in the width direction by changing the material and shape of the back rubber layer of the belt body, to ensure the pinch transport of ginseng, radish and other root vegetables, Provided is a crop transport belt that prevents a transported object from slipping down. SOLUTION: On the lower surface side of a belt body composed of a back rubber layer 2 and a lower core body canvas 3, a belt having a V portion 6 in which the periphery of rubber is covered with a canvas 5 is fixed to each back rubber layer 2. In the agricultural product transport belt used in the state, the back rubber layer 2 is made of soft rubber, and the grooves 8 are provided in a direction perpendicular to the longitudinal direction of the belt, and the grooves 8 are alternately formed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a belt for transporting crops used in vegetable harvesting machines such as root vegetables such as carrots, radishes, and spinach, and more particularly to crops used for harvesting machines that transport harvested crops sandwiched between a set of two belts. It relates to a conveyor belt.

[0002]

[Prior art]

 Conventional transport belts for holding and moving leaves of crops have a structure in which a cushion body having a corrugated surface is attached to a belt body in which a core body is embedded. This set of belts is wound and arranged with the respective cushion bodies facing each other and mounted on a reaper or the like. The leaves of crops such as ginseng are sandwiched between the opposing cushion bodies, extracted from the soil, and transported.

A belt body having a core body embedded therein has a core body in a V portion, and a flat belt made of rubber alone is formed on the V portion. There is a belt formed with a flat belt having a core body, a belt having a V portion of rubber alone on the lower surface side of a belt body having a core body canvas on the lower surface of a back rubber layer, and the like.

[0004]

[Problems to be solved by the invention]

 However, in the above-mentioned conventional belt, in the case of the conventional belt, the core body which carries the driving portion is narrow, and the shear force acts between the V portion and the rubber flat belt, so that the belt is easily separated, and the pitch line is in the V pulley, and the bending is caused. As a result, the elongation of the upper rubber surface of the flat belt increases, and cracks are likely to occur. Since the pitch line is farther away from the V part, it is difficult to bend and the pulley diameter cannot be set small. Furthermore, since the flat belt is composed of canvas on the lower side and rubber on the upper side, the heat during the manufacturing process causes the contraction of the core body canvas to increase, causing the flat belt to bend in the width direction. There's a problem.

[0005] The present invention is intended to improve such a problem. By modifying the material and shape of the back rubber layer of the belt main body, the flat belt portion can be prevented from bending in the width direction, and ginseng, It is an object of the present invention to provide a belt for transporting agricultural crops that can securely hold root vegetables such as radish and prevent the transported articles from slipping off.

[0006]

[Means for Solving the Problems]

 That is, a feature of the present invention is that a belt having a rubber portion covered with a canvas and a V portion fixed to the lower surface side of a belt body including a back rubber layer and a bottom core body canvas is attached to each back rubber layer. In the agricultural product transport belt used in a state in which the convex portion and the groove are alternately formed, the back rubber layer is made of soft rubber and grooves are provided in a direction perpendicular to the longitudinal direction of the belt. Belt. The hardness of the soft rubber of the back rubber layer is 40 to 70 according to JIS-A.

[0007]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a front view of a driving device for a transport belt used in a crop harvester, FIG. 2 is a partial cross-sectional perspective view of the crop transport belt, and FIG. 3 is a bottom view of a section taken along line AA in FIG. FIG. 4 is a sectional view showing only the belt, and FIG. 4 is a sectional view taken along line BB of FIG.

[0008] In these figures, in the driving device of the transport belt 1 used in the crop harvesting machine, a canvas 5 around the V-shaped rubber 4 is provided under the belt body composed of the back rubber layer 2 and the core body canvas 3. Is wound around a driving pulley 11, a driven pulley 12, and an intermediate pulley 13 in a state in which the convex portions 7 of each back rubber layer 2 are in contact with each other. It has been placed. When the leaves and the vine are sandwiched between the convex portions 7 of the back rubber layers 2, the conveyed articles made of agricultural products such as carrots are extracted from the soil and conveyed.

In the above-described transport belt 1 of the present invention, the back rubber layer 2 has a main part, and the back rubber layer is a soft rubber, for example, a chloroprene rubber having a JIS hardness of 40 to 70, Alternatively, it includes a sponge type. Grooves 8 are provided on the back rubber layer 2 in a direction perpendicular to the longitudinal direction of the belt, and the convex portions 7 and the grooves 8 are arranged alternately.

The convex portion 7 and the groove 8 of the back rubber layer 2 have a large convex portion and a small groove. Specifically, while the width (M) of the convex portion is 3 to 15 mm, the width (N) of the groove is 1/5 to 1/3 of the width of the convex portion. Assuming that the height (H1) of the back rubber layer and the height (H2) of the convex portion are, H2 = 3 to 6 mm with respect to H1 = 4 to 8 mm, and it is necessary to satisfy H1> H2. . The corners of the convex portion 7 and the groove 8 are provided with a radius (R) of 5 to 20 mm, and the angle θ of the groove is preferably in the range of 30 ° to 60 °.

[0011] The core body fabric 3 is made of polyester fiber, polyamide fiber, aramid fiber, or the like. If necessary, rubber such as natural rubber, SBR, NBR, or CR is coated and vulcanized and bonded to the back rubber layer to be integrated. I do. The V-shaped rubber is the same as the above-mentioned rubber, and the periphery thereof is covered with a canvas 5 and is integrated with the flat belt portion by vulcanization. The V-shaped rubber may contain short fibers such as nylon, polyester, aramid, and cotton as needed.

When the hardness of the above soft rubber is less than 40, the holding force is weak, and the soft rubber is easily broken. On the other hand, if the rubber hardness is 70 or more, the shape adaptability of the soft rubber deteriorates, which is not preferable.

[0013]

[Effect of the invention]

 As described above, the crop transport belt of the present invention has a configuration in which the back rubber layer of the belt body is made of soft rubber, grooves are provided in a direction perpendicular to the longitudinal direction of the belt, and convex portions and grooves are alternately formed. This makes it difficult for the flat belt portion to bend in a direction perpendicular to the longitudinal direction, thereby ensuring the holding force when holding and transporting root vegetables such as carrots and radishes to prevent the load from sliding down. In addition, by providing a groove on the back surface, it is possible to expect additional effects such as removal of sand, mud, etc. attached to the conveyed object.

[Brief description of the drawings]

FIG. 1 is a front view of a driving device for a crop transport belt according to the present invention.

FIG. 2 is a partial cross-sectional perspective view of the crop transport belt according to the present invention.

FIG. 3 is a cross-sectional view of the conveying belt showing a lower side of a cross section taken along line AA of FIG. 1;

FIG. 4 is a cross-sectional view of the transport belt taken along line BB of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveying belt 2 Back rubber layer 3 Core 4 V-shaped rubber 5 Canvas 6 V part 7 Convex part 8 Groove

Claims (2)

[Utility model registration claims] 1. A belt in which a rubber-covered V portion is fixed to the lower surface side of a belt body composed of a back rubber layer and a lower core body canvas in a state where the respective back rubber layers are in contact with each other. A belt for transporting agricultural products, wherein the back rubber layer is made of soft rubber, and grooves are provided in a direction perpendicular to the longitudinal direction of the belt, and convex portions and grooves are alternately formed. 2. The soft rubber hardness of the back rubber layer is determined according to JIS.
The crop transport belt according to claim 1, wherein -A is 40 to 70.